Title:
INVERTER CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/034113
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce a voltage difference caused by dead time. An inverter control device 100 comprises: a modulated wave generating unit 120 that generates a modulated wave signal on the basis of a voltage command value in an output voltage of an inverter 10; and a PWM pulse generating unit 150 that, on the basis of the modulated wave signal, generates a PWM pulse signal for controlling a switching operation of the inverter 10. The modulated wave generating unit 120 includes: a modulation factor command computing unit 121 that computes a modulation factor command value that indicates a voltage command value as a modulation factor of an output voltage; an actual modulation factor estimating unit 124 that estimates an actual modulation factor that is a modulation factor for which a dead time of the inverter 10 is considered; and a correction coefficient computing unit 125 that computes a correction coefficient of the voltage command value on the basis of the modulation factor command value and the actual modulation factor. The modulated wave generating unit 120 generates a modulated wave signal on the basis of the voltage command value corrected with the correction coefficient.
Inventors:
NAKANO HIROTO (JP)
TANAKA TAKAHIRO (JP)
TANIGUCHI SHUN (JP)
YAMASHITA SHINYA (JP)
KISHIMOTO EIGO (JP)
TANAKA TAKAHIRO (JP)
TANIGUCHI SHUN (JP)
YAMASHITA SHINYA (JP)
KISHIMOTO EIGO (JP)
Application Number:
PCT/JP2022/030712
Publication Date:
February 15, 2024
Filing Date:
August 12, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02M7/48
Domestic Patent References:
| WO2009063786A1 | 2009-05-22 |
Foreign References:
| JPH0698595A | 1994-04-08 | |||
| JP2008295163A | 2008-12-04 | |||
| JP2012105393A | 2012-05-31 | |||
| JP2013090551A | 2013-05-13 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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